Total Bridges
18,630
Public highway bridges in Indiana
State profile · Below national median SD
Indiana bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Indiana — drawn straight from the FHWA National Bridge Inventory.
- 18,630
- Public bridges
- 36.1%
- Good condition
- 4.9%
- Poor condition
- 4.9%
- Structurally deficient
Good Condition
36.1%
6,733 bridges rated 7-9
-13.9pp vs 50% benchmark
Poor Condition
4.9%
920 bridges rated 0-4
Structurally Deficient
4.9%
920 bridges flagged for repair priority
-2.1pp vs national avg 7.0%
Indiana vs national bridge condition
Indiana — Good condition share 36.1%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Indiana — Structurally deficient share 16.5%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — Indiana (FHWA NBI)
Counties (92)
Adams 191 Allen 601 Bartholomew 263 Benton 147 Blackford 56 Boone 235 Brown 34 Carroll 159 Cass 161 Clark 144 Clay 144 Clinton 205 Crawford 117 Daviess 205 DeKalb 147 Dearborn 139 Decatur 141 Delaware 272 Dubois 214 Elkhart 272 Fayette 98 Floyd 144 Fountain 195 Franklin 158 Fulton 82 Gibson 348 Grant 278 Greene 233 Hamilton 440 Hancock 189 Harrison 124 Hendricks 341 Henry 192 Howard 194 Huntington 183 Jackson 308 Jasper 186 Jay 124 Jefferson 151 Jennings 148 Johnson 213 Knox 282 Kosciusko 145 LaGrange 100 LaPorte 229 Lake 488 Lawrence 158 Madison 297 Marion 964 Marshall 185 Martin 104 Miami 165 Monroe 226 Montgomery 241 Morgan 241 Newton 167 Noble 88 Ohio 41 Orange 133 Owen 143 Parke 195 Perry 146 Pike 164 Porter 280 Posey 205 Pulaski 100 Putnam 284 Randolph 253 Ripley 188 Rush 223 Scott 113 Shelby 243 Spencer 241 St. Joseph 228 Starke 85 Steuben 134 Sullivan 208 Switzerland 62 Tippecanoe 329 Tipton 109 Union 58 Vanderburgh 286 Vermillion 125 Vigo 294 Wabash 189 Warren 136 Warrick 183 Washington 173 Wayne 342 Wells 155 White 214 Whitley 112
Indiana vs nearby ranks
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Indiana on the same metric.
05
Arkansas
4.71% top marginal rate
53
Washington
4.81% top marginal rate
18
Indiana
4.94% top marginal rate
20
Kansas
5.25% top marginal rate
56
Wyoming
5.41% top marginal rate
Bridges Needing Most Attention in Indiana
Six lowest-condition bridges in Indiana, ranked by composite NBI rating. Each is inspected at least every 24 months.
MOUNT LIBERTY ROAD
Structurally DeficientOver: MOUNT LIBERTY CREEK
00.10 S 4 MILE RD, Brown, IN
Built 1929 Load: 2.7 t ADT: 150
CR 250W
PoorOver: JONES CREEK
00.70 S of CR 250 N, Putnam, IN
Built 1925 Load: 2.7 t ADT: 180
CR 675W
Structurally DeficientOver: BRANCH OF LEATHERMAN CR
00.20 S of CR 125 N, Putnam, IN
Built 1930 Load: 2.7 t ADT: 130
CR 275S
Structurally DeficientOver: CONRAIL RR
00.50 E of CR 600 W, Putnam, IN
Built 1910 Load: 2.7 t ADT: 130
SHAPED CHARGE ROAD
PoorOver: LITTLE OTTER CREEK
1.2 MILES NORTH OF K RD, Ripley, IN
Built 1899 Load: 2.7 t ADT: 2
WONJU ROAD
PoorOver: TRIBUTARY OF BIG CREEK
0.3 MILE NORTH OF G ROAD, Ripley, IN
Built 1990 Load: 2.7 t ADT: 10
All Bridges in Indiana
I-65
UnknownOver: CLIFTON STREET
06.00 N I-70, Marion, IN
Built 1968 ADT: 4,508
I-65
UnknownOver: EAST PARKWAY
05.94 S of I-465, Marion, IN
Built 1966 ADT: 118
COLD SPRING ROAD
UnknownOver: I-65 NB
05.36 S I-465, Marion, IN
Built 2000 ADT: 138,653
38TH STREET EB
UnknownOver: I-65 NB RAMP TO 38TH ST
05.22 S I-465, Marion, IN
Built 2000 ADT: 138,653
KESSLER BOULEVARD
UnknownOver: EB 38TH ST (I-65 SB RAMP
04.70 S I-465, Marion, IN
Built 1964 ADT: 73,404
I-65 NB
UnknownOver: GUION RD NB & SB
03.93 S I-465, Marion, IN
Built 1964 ADT: 4,774
I-65 SB
UnknownOver: GUION ROAD
03.93 S I-465, Marion, IN
Built 1964 ADT: 4,774
I-65 NB
UnknownOver: INDUSTRIAL BLVD NB & SB
03.80 S I-465, Marion, IN
Built 1964 ADT: 61,265
I-65 SB
UnknownOver: 38TH ST WB
03.80 S I-465, Marion, IN
Built 1964 ADT: 61,265
GEORGETOWN ROAD
UnknownOver: I65 SB
02.56 S I-465, Marion, IN
Built 1969 ADT: 31,887
I-65 NB
UnknownOver: LAFAYETTE RD SB
02.00 S I-465, Marion, IN
Built 1963 ADT: 24,291
I-65 SB
UnknownOver: LAFAYETTE RD NB
02.00 S I-465, Marion, IN
Built 1963 ADT: 24,291
W 52ND STREET
UnknownOver: I-65 SB
01.47 S I-465, Marion, IN
Built 1962 ADT: 28,669
I-65 NB
UnknownOver: 56TH ST EB
00.91 S I-465, Marion, IN
Built 1963 ADT: 16,708
I-65 SB
UnknownOver: 56TH ST EB
00.91 S I-465, Marion, IN
Built 1963 ADT: 16,708
I-65 NB
UnknownOver: I-465 SBL
07.16 S SR 334, Marion, IN
Built 1959 ADT: 59,494
I-65 SB
UnknownOver: I-465 SBL
07.16 S SR 334, Marion, IN
Built 1959 ADT: 59,494
I-65 SB
UnknownOver: I-65 NB CONNECTOR
00.26 N I-465, Marion, IN
Built 1959 ADT: 10,270
I-65 NB
UnknownOver: WEST 71ST ST
01.48 N I-465, Marion, IN
Built 1960 ADT: 9,957
I-65 SB
UnknownOver: WEST 71ST ST
01.48 N I-465, Marion, IN
Built 1960 ADT: 9,957
I-65 NB
UnknownOver: WEST 82ND STREET
03.41 N I-465, Marion, IN
Built 1960 ADT: 118
I-65 SB
UnknownOver: WEST 82ND STREET
03.41 N I-465, Marion, IN
Built 1960 ADT: 118
W 86TH STREET
UnknownOver: I-65 SB
04.08 N I-465, Marion, IN
Built 1959 ADT: 18,810
I-69 NB
UnknownOver: EAST 82ND STREET EBL
00.84 N I-465, Marion, IN
Built 1969 ADT: 16,494
I-69 SB
UnknownOver: EAST 82ND STREET EBL
00.84 N I-465, Marion, IN
Built 1969 ADT: 16,494
96TH STREET
UnknownOver: I-69 SBL
02.58 N I-465, Marion, IN
Built 1969 ADT: 66,000
I-70 WB ON RAMP
UnknownOver: I70 WB CD
03.26 E SR 267, Marion, IN
Built 2005 ADT: 5,000
I-70 EB OFF RAMP
UnknownOver: I70 RAMP AP-EB
03.27 E SR 267, Marion, IN
Built 2005 ADT: 2,000
I-70 EB ON RAMP
UnknownOver: I70 WB CD
03.25 W I-465, Marion, IN
Built 2005 ADT: 3,535
HIGH SCHOOL ROAD
UnknownOver: I70 WB CD
00.29 W I-465, Marion, IN
Built 2004 ADT: 75,217
LYNHURST DRIVE
UnknownOver: I-70 WB
01.18 E I-465, Marion, IN
Built 1967 ADT: 24,750
SAM JONES EXPWY
UnknownOver: I-70 WBL ON-RAMP
01.78 E I-465, Marion, IN
Built 1967 ADT: 1,603
I-70 EB
UnknownOver: MINNESOTA ST
02.62 E I-465, Marion, IN
Built 1967 ADT: 7,293
I-70 WB
UnknownOver: MINNESOTA ST
02.62 E I-465, Marion, IN
Built 1967 ADT: 7,293
I-70 EB
UnknownOver: W MORRIS STREET
03.21 E I-465, Marion, IN
Built 1967 ADT: 8,619
I-70 WB
UnknownOver: MORRIS STREET
03.21 E I-465, Marion, IN
Built 1967 ADT: 8,619
HOLT ROAD
UnknownOver: I-70 WBL
03.63 E I-465, Marion, IN
Built 1967 ADT: 82,500
I-70
UnknownOver: TIBBS AVE
03.90 W I-65, Marion, IN
Built 1967 ADT: 7,558
I-70 EB
UnknownOver: WARMAN AVE
03.37 W I-65, Marion, IN
Built 1967 ADT: 5,834
I-70 WB
UnknownOver: WARMAN AVE
03.37 W I-65, Marion, IN
Built 1967 ADT: 5,834
I-70
UnknownOver: BELMONT AVE
02.87 W I-65, Marion, IN
Built 1967 ADT: 6,630
I-70
UnknownOver: HARDING ST NB
02.36 W I-65, Marion, IN
Built 1975 ADT: 6,514
I-70
UnknownOver: DIVISION ST
02.13 W I-65, Marion, IN
Built 1973 ADT: 2,122
I-70
UnknownOver: SOUTH RIVER AVENUE
01.72 W I-65, Marion, IN
Built 1972 ADT: 500
I-70
UnknownOver: MISSOURI ST NB
01.31 W I-65, Marion, IN
Built 1973 ADT: 17,238
I-70 EB EXIT RAMP
UnknownOver: CAPITOL AVENUE
00.97 W I-65, Marion, IN
Built 1975 ADT: 3,448
I-70
UnknownOver: KENWOOD AVE
01.16 W I-65, Marion, IN
Built 1975 ADT: 3,448
I-70 WB ON RAMP
UnknownOver: I-70 WB EXIT RAMP
01.25 W I-65, Marion, IN
Built 1973 ADT: 12,575
I-70 EB EXIT RAMP
UnknownOver: I-70 EB ON RAMP
01.24 W I-65, Marion, IN
Built 1973 ADT: 10,569
I-70 EB/WB
UnknownOver: ILLINOIS EXIT RAMP NB
00.93 W I-65, Marion, IN
Built 1974 ADT: 3,507
Showing 1,151-1,200 of 18,630 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |